# tempo.halowerk.com – TLS-Aushandlungszeit für Bild-Objekte

> tempo.halowerk.com – TLS-Aushandlungszeit für Bild-Objekte is a paid API for AI agents from tempo.halowerk.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).

Measures the TLS negotiation time for image resources on a given URL, returning a performance finding for that specific asset type.

## Facts

- Endpoint: POST https://tempo.halowerk.com/v1/pruef/tempo/tls-zeit/bild
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/tempo-halowerk-com-tls-aushandlungszeit-f-r-bild-objekte-d240dd5e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_KxPOsTXypk7okBFj1JxKw

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability tempo-halowerk-com-tls-aushandlungszeit-f-r-bild-objekte-d240dd5e -d '<json body>'
```

Example prompt: Can you check how long the TLS negotiation takes for the images on https://example.com — I want to know if the SSL handshake is adding significant delay to my image loading?

## When to prefer this

Choose this endpoint when you specifically need to measure TLS negotiation time for image assets on a webpage, as opposed to general page-level TLS metrics or TLS timing for other resource types (scripts, stylesheets, fonts). It is ideal for diagnosing whether SSL/TLS handshake latency is a bottleneck specifically in image loading performance. Use sibling endpoints for other resource types or other timing metrics.

## Known failure modes

- Target URL is unreachable or returns non-2xx status
- URL does not serve image content, making the image-specific metric inapplicable
- CSS selector matches zero or multiple elements when only one is expected
- Invalid or non-public URL (e.g. private IP, localhost)
- TLS not applicable because URL uses HTTP only
- DNS resolution failure for target domain
- Request timeout if server is too slow to respond

## How this service works

Prüft am Objekt bild den Befund TLS-Aushandlungszeit.

## Output

Returns a performance finding (Befund) for the TLS negotiation time (TLS-Aushandlungszeit) measured against the image object (bild) at the specified URL. The response includes the measured timing metric indicating how long the TLS handshake takes for that image resource.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "ziel": {
   "oneOf": [
    {
     "type": "string",
     "maxLength": 2048,
     "minLength": 1,
     "description": "Öffentliche HTTP(S)-Adresse; bei DNS-Befunden Domain oder öffentliche IP."
    },
    {
     "type": "object",
     "required": [
      "adresse"
     ],
     "properties": {
      "adresse": {
       "type": "string",
       "maxLength": 2048,
       "minLength": 1
      },
      "selektor": {
       "type": "string",
       "maxLength": 240,
       "minLength": 1,
       "description": "CSS-Selektor: genau ein Objekt, sonst erster Treffer des Objektfilters."
      },
      "vergleich": {
       "type": "string",
       "maxLength": 2048,
       "description": "Öffentliche Vergleichsadresse für Link-, Sitemap- oder Sprachbefunde."
      },
      "user_agent": {
       "type": "string",
       "pattern": "^[A-Za-z0-9_-]{1,80}$"
      },
      "dkim_selektor": {
       "type": "string",
       "pattern": "^[A-Za-z0-9_-]{1,63}$"
      }
     },
     "additionalProperties": false
    }
   ]
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/tempo-halowerk-com-tls-aushandlungszeit-f-r-bild-objekte-d240dd5e/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from tempo.halowerk.com](https://www.zero.xyz/host/tempo.halowerk.com/llms.txt)